The carbon-carbon Sepcarb^® are made of carbon fibers reinforcement and carbon matrix which bond the fibers together and transfer the loads between them. Both carbon fibers and matrix have high temperature resistance. Their combinations in composites provide Sepcarb^® with exceptional lightness, long lifetime, outstanding resistance to thermal shocks, perfect operational behavior, mechanical properties stability at temperatures up to 2700°C. These properties make them suitable for a very wide range of applications.

When necessary, silicon carbide matrix might be used as well instead of the carbon matrix or in addition to it in order to increase life time in oxidative environment or to avoid methane formation for example.

At the opposite of standard carbon-carbon made of clothe lay up, the carbon-carbon Sepcarb^® H01 is non sensitive to delamination. This results from its 3D architecture that is created by the automatic needling process in combination with the Chemical Vapor Infiltration (CVI) process that are used for their manufacturing. With an average density of 1,5 these composites are ideally designed for the equipment of heat treatment furnaces operating up to 1300°C or more.

The CVI process enables the formation of extremely pure and homogeneous carbon or silicon carbide matrix within the porosity of the fiber architecture so that to offer optimal matrix to fiber cohesion, hence very good mechanical properties, and very good thermal stability. Materials and parts are manufactured using mature and industrial processes. Manufacturing capabilities exceed 2 m X 3 m (80’’ X 120’’) and include carbon preform manufacturing, carbon and silicon carbide densification (CVI and liquid routes), heat treatment up to 2800°C, machining and inspection.

Various geometries can be manufactured including but not limited to plates, cylinders, tubes, discs, cones, beams,... as well as complex shapes with thickness from less than one millimeter to several centimeters.